(Reclassifications AOCI) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Reclassification out of Accumulated Other Comprehensive Loss [Line Items]
Net sales		$ 1,717.4	$ 1,599.1	$ 1,509.1
Cost of goods and services sold		(1,172.0)	(1,086.2)	(1,007.7)
Interest expense		(8.4)	(7.8)	(8.1)
Pension curtailment gain		0.0	0.0	(2.1)
Income before income taxes		240.7	222.4	189.8
Tax expense		(41.4)	(80.9)	(54.4)
Net income		206.9	150.7	$ 143.6
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification out of Accumulated Other Comprehensive Loss [Line Items]
Net income		(0.8)	(2.7)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Losses on Cash Flow Hedges [Member]
Reclassification out of Accumulated Other Comprehensive Loss [Line Items]
Income before income taxes		(1.6)	(3.6)
Tax expense		0.4	1.0
Net income		(1.2)	(2.6)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Losses on Cash Flow Hedges [Member] | Foreign Currency Contract [Member]
Reclassification out of Accumulated Other Comprehensive Loss [Line Items]
Net sales		(0.7)	(1.3)
Cost of goods and services sold		(0.5)	(1.2)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Losses on Cash Flow Hedges [Member] | Interest Rate Swap Contracts [Member]
Reclassification out of Accumulated Other Comprehensive Loss [Line Items]
Interest expense		0.0	(0.7)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Losses on Cash Flow Hedges [Member] | Forward Treasury Locks [Member]
Reclassification out of Accumulated Other Comprehensive Loss [Line Items]
Interest expense		(0.4)	(0.4)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Defined Benefit Pension and Other Postretirement Plans [Member]
Reclassification out of Accumulated Other Comprehensive Loss [Line Items]
Prior service credit	[1]	2.0	2.1
Actuarial (loss) gain	[1]	(1.4)	(2.3)
Income before income taxes		0.6	(0.2)
Tax expense		(0.2)	0.1
Net income		$ 0.4	$ (0.1)

[1] (a) These components are included in the computation of net periodic benefit cost. Please refer to Note 14, Benefit Plans, for additional details.